PD Meter optometry concentrator Accessories:

Accessories:

looking for similarities

spectral processing

but exceed the growing demands and expectations of users who cherish independence

making it easier and more convenient

PD Meter optometry concentrator Accessories:PD Meter Description The device is a scicentific and perfect design, consisting of measurement system, optical system,ESS and computer software system1. Using mechanical hairspring to level at the reflecting point of human cornea to realize the consecutive measurement. It features direct point sampling and high accuracy of orientation; 2. Adopting high precision line shaped sensors, advanced intellectualized electronic system and digital display which